Document Rust 2024 match ergonomics reservations #1702
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We're adopting two changes to match ergonomics in Rust 2024 that have the effect of reserving language space: - Rule 1C: When the DBM is not `move` (whether or not behind a reference), writing `mut`, `ref`, or `ref mut` on a binding is an error. - Rule 2C: Reference patterns can only match against references in the scrutinee when the DBM is `move`. Here, we document those changes in the Reference and describe the differences between editions.
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We're adopting two changes to match ergonomics in Rust 2024 that have the effect of reserving language space:
Rule 1C: When the DBM is not
move(whether or not behind a reference), writingmut,ref, orref muton a binding is an error.Rule 2C: Reference patterns can only match against references in the scrutinee when the DBM is
move.Here, we document those changes in the Reference and describe the differences between editions.
cc @ehuss @Nadrieril @Jules-Bertholet
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